„The delicate and intricate pattern of competition and cooperation in the economic behavior of the hundreds of thousands of citizens of Stockholm offers a challenge to the economist that is perhaps as complex as the challenges of the physicist and the chemist.“


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„Some kinds of government regulation of private consensual homosexual behavior may face substantial constitutional challenge.“

—  Anthony Kennedy Associate Justice of the Supreme Court of the United States 1936
Beller v. Middendorf, 632 F.2d 788, 809-10 (9th Cir. 1980) upholding a Navy discharge for homosexual conduct.

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„There are therefore three types of behavior: motor behavior, egocentric behavior (with external constraint), and cooperation.“

—  Jean Piaget Swiss psychologist, biologist, logician, philosopher & academic 1896 - 1980
Context: A second prefatory question faces us: that of society and the individual. We have sought to contrast the child and the civilized adult on the ground of their respective social attitudes. The baby (at the stage of motor intelligence) is asocial, the egocentric child is subject to external constraint but has little capacity for cooperation, the civilized adult of to-day presents the essential character of cooperation between differentiated personalities who regard each other as equals. There are therefore three types of behavior: motor behavior, egocentric behavior (with external constraint), and cooperation. And to these three types of social behavior there correspond three types of rules: motor rules, rules due to unilateral respect, and rules due to mutual respect. But here again, one must beware of laying down the law: for things are motor, individual and social all at once. As we shall have occasion to show, rules of cooperation are in some respects the outcome of the rules of coercion and of the motor rules. On the other hand, coercion is applied during the first days of an infant's life, and the earliest social relations contain the germs of cooperation. Here again, it is not so much a question of these successive features themselves as of the proportions in which they are present. Moreover, the way in which conscious realization and the time-lag from one level to another come into play is a further bar to our arranging these phenomena in a strict sequence, as though they made a single appearance and then disappeared from the scene once and for all. Ch. 1 : The Rules of the Game, § 8 : Conclusions : Motor Rules and the Two Kinds of Respect <!-- p. 86 -->

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„Economics deals with the behavior of commodities rather than with the behavior of men.“

—  Kenneth E. Boulding British-American economist 1910 - 1993
Attributed to Kenneth Boulding in: Peter F. Drucker, Management: Tasks, Responsibilities, Practices, New York: Truman Talley Books, E.P. Dutton, 1986, p. 21.

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